Understanding how browsers parse CSS and render websites is an important first step towards writing more efficient code. In this first piece on efficient CSS, we look at selectors, how the browser ...

CSS has some great new tools like pseudo classes and pseudo elements for selecting things just by where they are in the DOM. For example, :first-child can select the first descendant of an element or ...

If you haven't checked out CSS, understanding the most often used core selectors is a good place to start. I want to learn the CSS language, so how do I get started? I hear this question from ...

Editor’s note: This How To assumes a basic understanding of HTML. Along with HTML and JavaScript, CSS forms the foundation of the open Web. These three technologies power just about every website, and ...

An often-overlooked website performance bottleneck occurs in processing cascading style sheets and the subsequent application of CSS selectors across a webpage's document object model. To speed up how ...

In a perfect world, lost somewhere in a parallel universe, websites are designed, built and then run smoothly forever and nothing ever changes. In this world sites are built, iterated, added onto, ...

This definition explains the meaning of CSS (cascading style sheets) and how using them with HTML pages is a user interface (UI) development best practice that complies with the separation of concerns ...

This text-based tutorial is intended for people who learn fast through a combination of reading and images — it’s possible to learn HTML and CSS foundations in 15 minutes through this tutorial. For a ...